JPS6417037A - Transmission type screen - Google Patents

Transmission type screen

Info

Publication number
JPS6417037A
JPS6417037A JP62172772A JP17277287A JPS6417037A JP S6417037 A JPS6417037 A JP S6417037A JP 62172772 A JP62172772 A JP 62172772A JP 17277287 A JP17277287 A JP 17277287A JP S6417037 A JPS6417037 A JP S6417037A
Authority
JP
Japan
Prior art keywords
screen
diffusion agent
light
diffusing layer
transmission type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62172772A
Other languages
Japanese (ja)
Inventor
Koji Hirata
Kyohei Fukuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62172772A priority Critical patent/JPS6417037A/en
Publication of JPS6417037A publication Critical patent/JPS6417037A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)

Abstract

PURPOSE:To improve brightness on an entire screen and to prevent the mechanical strength of a screen from lowering by applying a coupling material on the surface of a diffusion agent which is mixed into the screen. CONSTITUTION:Light refracted on an incident surface 2 is propagated into the material of the screen 1 and enters a diffusing layer consisting of the diffusion agent 4, where it is diffused, and it is refracted on an emitting surface 3 again to be emitted on a specified direction. When video light entered in the diffusing layer 4 is projected from the diffusion agent 4, a part of the light is reflected between the material of screen 1 and the diffusing layer 4 and returned to the incident surface 2 side. Then the coupling agent 5 is applied on the surface of the diffusion agent 4 so as to reduce the reflected light. Thus, the brightness of the entire screen can be improved and the lowering of the mechanical strength of the screen can be prevented.
JP62172772A 1987-07-13 1987-07-13 Transmission type screen Pending JPS6417037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62172772A JPS6417037A (en) 1987-07-13 1987-07-13 Transmission type screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62172772A JPS6417037A (en) 1987-07-13 1987-07-13 Transmission type screen

Publications (1)

Publication Number Publication Date
JPS6417037A true JPS6417037A (en) 1989-01-20

Family

ID=15948048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62172772A Pending JPS6417037A (en) 1987-07-13 1987-07-13 Transmission type screen

Country Status (1)

Country Link
JP (1) JPS6417037A (en)

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